Thread: side image question

So in this picture the tree in the center should be right under the boat correct, Since it split it in half? However if i move the cursor more to the left headed to the base of the tree its going to tell me its 20 feet away to the left of the boat...what if i move it 3 feet further past the base of the tree? Is it now 23 feet away from the boat or 3? this is the one thing about side scan that has always confused me....some one help me out